Intervention: One group is assigned to the open procedure: posterolateral thoracotomy for lobectomy with mediastinal lymph node dissection. The other group is assigned to the VATS procedure: thoracoscopic minimally invasive lobectomy with thoracoscopic mediastinal lymph node dissection. All patients that do meet the inclusion criteria but are not participating in the randomized trial can be included in the prospective Cohort arm of the study evaluating clinical assignment to OPEN- VATS or ROBOT-assisted lobectomy.